internal.h 1.5 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253
  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __PSTORE_INTERNAL_H__
  3. #define __PSTORE_INTERNAL_H__
  4. #include <linux/types.h>
  5. #include <linux/time.h>
  6. #include <linux/pstore.h>
  7. #define PSTORE_DEFAULT_KMSG_BYTES 10240
  8. extern unsigned long kmsg_bytes;
  9. #ifdef CONFIG_PSTORE_FTRACE
  10. extern void pstore_register_ftrace(void);
  11. extern void pstore_unregister_ftrace(void);
  12. ssize_t pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
  13. const char *src_log, size_t src_log_size);
  14. #else
  15. static inline void pstore_register_ftrace(void) {}
  16. static inline void pstore_unregister_ftrace(void) {}
  17. static inline ssize_t
  18. pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
  19. const char *src_log, size_t src_log_size)
  20. {
  21. *dest_log_size = 0;
  22. return 0;
  23. }
  24. #endif
  25. #ifdef CONFIG_PSTORE_PMSG
  26. extern void pstore_register_pmsg(void);
  27. extern void pstore_unregister_pmsg(void);
  28. #else
  29. static inline void pstore_register_pmsg(void) {}
  30. static inline void pstore_unregister_pmsg(void) {}
  31. #endif
  32. extern struct pstore_info *psinfo;
  33. extern void pstore_set_kmsg_bytes(int);
  34. extern void pstore_get_records(int);
  35. extern void pstore_get_backend_records(struct pstore_info *psi,
  36. struct dentry *root, int quiet);
  37. extern int pstore_put_backend_records(struct pstore_info *psi);
  38. extern int pstore_mkfile(struct dentry *root,
  39. struct pstore_record *record);
  40. extern void pstore_record_init(struct pstore_record *record,
  41. struct pstore_info *psi);
  42. /* Called during pstore init/exit. */
  43. int __init pstore_init_fs(void);
  44. void __exit pstore_exit_fs(void);
  45. #endif